
	
	
It is a Class-D digital amplifier which is used for the voice signal broadcasting in EVAC system. And it is a 2U device that integrates 4 independent PFC functions, a power-saving control module, and the 120W/240W/350W/500W power amplifier with DC24V power interface, 4 channels.
	
	
* Modular design, easy to configure as required.
* The use of efficient class-D digital power amplifier design scheme has lower power consumption.
* 2U design, 4 independent channels, each channel 120W/240W/350W/500W.
* Overload, short circuit protection, automatic temperature control.
* Automatically detect the working status of each channel and indicate by LED.
* Support power saving mode, enter standby mode when there is no signal.
	
	
| 
					 Model  | 
				
					 VA-P4120  | 
				
					 VA-P4240  | 
				
					 VA-P4350  | 
				
					 VA-P4500  | 
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					 AC power supply  | 
				
					 
  | 
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| 
					 Voltage  | 
				
					 ~220V 50Hz  | 
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| 
					 Working current  | 
				
					 2.6A  | 
				
					 5.3A  | 
				
					 7.7A  | 
				
					 11A  | 
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| 
					 DC power supply  | 
				
					 
  | 
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| 
					 DC input  | 
				
					 DC~24V; ±20%  | 
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| 
					 Working current  | 
				
					 24A  | 
				
					 48A  | 
				
					 70A  | 
				
					 100A  | 
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| 
					 Power supply  | 
				
					 4x120W  | 
				
					 4x240W  | 
				
					 4x350W  | 
				
					 4x500W  | 
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| 
					 Power consumption  | 
				
					 580W  | 
				
					 1150W  | 
				
					 1680W  | 
				
					 2400W  | 
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| 
					 Audio frequency data  | 
				
					 
  | 
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| 
					 Input mode  | 
				
					 Balance 385mV  | 
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					 Frequency response  | 
				
					 40Hz-20KHz±3dB  | 
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					 output  | 
				
					 Constant voltage 100V  | 
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| 
					 THD  | 
				
					 ≤1% (rated power THD), 1KHz  | 
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| 
					 S/N  | 
				
					 ≥90dB  | 
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| 
					 Working temperature  | 
				
					 5℃ ~ 40℃  | 
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| 
					 Related humidity  | 
				
					 <95%  | 
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					 Cooling way  | 
				
					 Air-cooled  | 
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					 Protection ways  | 
				
					 Time-delay, over-heated, short circuit, overload  | 
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					 Size  | 
				
					 484 x 478 x 88mm  | 
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					 Net Weight  | 
				
					 13.46Kg  | 
				
					 13.48Kg  | 
				
					 13.54Kg  | 
				
					 13.66Kg  | 
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